Compensating needle bar connecting linkage for a sewing machine

Details Compensating needle bar connecting linkage for a sewing machine Compensating needle bar connecting linkage for a sewing machine

1979-06-18

1981-01-27

Reynolds, Wm. Carter

Sewing

Work manipulating

Guides

112221, D05B 302, D05B 5514

Patent

active

042468558

ABSTRACT:
A zig-zag sewing machine is provided with a compensating link and slide which engage on curved surfaces extending in a circular arc that has its center in line with the link. The compensating link and slide are situated between a crank and needle bar and move relative to each other during zig-zag operations to modify the operating effect of the crank and cause a needle to be similarly positioned relative to a vertical axis hook for loop taking in alternate zig-zag positions of the needle bar.

REFERENCES:
patent: 2662495 (1953-12-01), Parry
patent: 2932268 (1960-04-01), Johnson
patent: 3026831 (1962-03-01), Johnson
patent: 3040682 (1962-06-01), Leslie
patent: 3148646 (1964-09-01), Sigoda
patent: 3318272 (1967-05-01), Taketomi

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